Show with endless pop entertains somehow (12)
I believe the answer is:
presentation
'show' is the definition.
(I know that presentation is a type of show)
'endless pop entertains somehow' is the wordplay.
'endless' means to remove the last letter.
'somehow' is an anagram indicator.
'pop' with its final letter taken off is 'po'.
'po'+'entertains'='poentertains'
'poentertains' anagrammed gives 'PRESENTATION'.
'with' is the link.
(Other definitions for presentation that I've seen before include "show" , "when gifts are handed out?" , "Formal introduction" , "Formal act of giving" , "Display" .)